US Bridges

Bascom Ave over Los Gatos Creek

Fair

Santa Clara County, California · Near SW Expressway · Structure no. 37C0031

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
160 ft
2 main spans
Daily traffic
28,300
1999 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bascom Ave over Los Gatos Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Bascom Ave over Los Gatos Creek in Santa Clara County, California. It was built in 1972, so it is 53 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 28,300 vehicles a day, roughly 4% of them trucks, projected to reach 45,882 by 2042. The structure is 160 ft (48.8 m) long and 125 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBascom Ave
CrossesLos Gatos Creek
LocationNear SW Expressway
RouteCity Street 0
Coordinates37.29709, -121.93146
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span79 ft (24.1 m)
Deck width125 ft (38.1 m)
Roadway width97 ft (29.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,300 (1999)
Projected traffic45,882 by 2042
Trucks4%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bascom Ave over Los Gatos Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Bascom Ave over Los Gatos Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Bascom Ave over Los Gatos Creek carry?

About 28,300 vehicles per day (1999 count), of which roughly 4% are trucks.

How long is Bascom Ave over Los Gatos Creek?

The structure is 160 ft (48.8 m) long with a longest span of 79 ft (24.1 m) and a deck 125 ft wide.

Who owns Bascom Ave over Los Gatos Creek?

It is owned by the City or Municipal Highway Agency.